BR9610029A - Receptor e transmissor - Google Patents

Receptor e transmissor

Info

Publication number
BR9610029A
BR9610029A BR9610029A BR9610029A BR9610029A BR 9610029 A BR9610029 A BR 9610029A BR 9610029 A BR9610029 A BR 9610029A BR 9610029 A BR9610029 A BR 9610029A BR 9610029 A BR9610029 A BR 9610029A
Authority
BR
Brazil
Prior art keywords
transmitter
receiver
Prior art date
Application number
BR9610029A
Other languages
English (en)
Inventor
Gregory E Bottomley
Original Assignee
Ericsson Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Inc filed Critical Ericsson Inc
Publication of BR9610029A publication Critical patent/BR9610029A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H04J13/12—Generation of orthogonal codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
BR9610029A 1995-07-26 1996-07-17 Receptor e transmissor BR9610029A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/507,714 US5615209A (en) 1995-07-26 1995-07-26 Method and apparatus for CDMA signal orthogonalization
PCT/US1996/011735 WO1997005708A1 (en) 1995-07-26 1996-07-17 Method and apparatus for cdma signal orthogonalization

Publications (1)

Publication Number Publication Date
BR9610029A true BR9610029A (pt) 1999-07-06

Family

ID=24019823

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9610029A BR9610029A (pt) 1995-07-26 1996-07-17 Receptor e transmissor

Country Status (12)

Country Link
US (1) US5615209A (pt)
EP (1) EP0840960B1 (pt)
JP (1) JP2000503172A (pt)
KR (1) KR100410791B1 (pt)
CN (1) CN1098571C (pt)
AU (1) AU728040B2 (pt)
BR (1) BR9610029A (pt)
CA (1) CA2227880C (pt)
DE (1) DE69625816T2 (pt)
IL (1) IL122989A (pt)
RU (1) RU2200365C2 (pt)
WO (1) WO1997005708A1 (pt)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE37802E1 (en) 1992-03-31 2002-07-23 Wi-Lan Inc. Multicode direct sequence spread spectrum
US5550809A (en) * 1992-04-10 1996-08-27 Ericsson Ge Mobile Communications, Inc. Multiple access coding using bent sequences for mobile radio communications
US6320842B1 (en) * 1996-02-01 2001-11-20 Canon Kabushiki Kaisha Spread spectrum communication apparatus
US5894473A (en) * 1996-02-29 1999-04-13 Ericsson Inc. Multiple access communications system and method using code and time division
US5764646A (en) * 1996-04-02 1998-06-09 Ericsson Inc. Packet data transmission with clash subtraction
US6192068B1 (en) * 1996-10-03 2001-02-20 Wi-Lan Inc. Multicode spread spectrum communications system
IL119752A0 (en) * 1996-12-04 1997-09-30 Israel State Asynchronous CDMA decorrelating detector
JP2815007B2 (ja) * 1996-12-05 1998-10-27 日本電気株式会社 可変レートｃｄｍａ拡散回路
US6442153B1 (en) 1997-10-23 2002-08-27 Telefonaktiebolaget Lm Ericsson (Publ) Random access in a mobile telecommunications system
FR2774831B1 (fr) * 1998-02-11 2000-04-07 Agence Spatiale Europeenne Recepteur adaptatif de signaux pour systeme de communications a acces pultiples par repartition a codes
US6363105B1 (en) 1998-02-17 2002-03-26 Ericsson Inc. Flexible sliding correlator for direct sequence spread spectrum systems
US6643275B1 (en) 1998-05-15 2003-11-04 Telefonaktiebolaget Lm Ericsson (Publ) Random access in a mobile telecommunications system
ID24882A (id) * 1998-06-13 2000-08-31 Samsung Electronics Co Ltd Piranti dan metode pengukuran daya desah tidak-ortogonal untuk sistim komunikasi coma
US6501788B1 (en) 1999-01-22 2002-12-31 Ericsson Inc. Apparatus and methods for intereference cancellation in spread spectrum communications systems
US6658047B1 (en) * 1999-03-10 2003-12-02 Nokia Corporation Adaptive channel equalizer
US6442154B1 (en) 1999-04-15 2002-08-27 Ericsson Inc. Method and apparatus for successive cancellation using multiple signal timings
US6714585B1 (en) 1999-06-25 2004-03-30 Ericsson Inc. Rake combining methods and apparatus using weighting factors derived from knowledge of spreading spectrum signal characteristics
US6801565B1 (en) 1999-06-25 2004-10-05 Ericsson Inc. Multi-stage rake combining methods and apparatus
US6363060B1 (en) * 1999-06-30 2002-03-26 Qualcomm Incorporated Method and apparatus for fast WCDMA acquisition
US6574270B1 (en) * 1999-07-30 2003-06-03 Ericsson Inc. Baseband interference canceling spread spectrum communications methods and apparatus
CN1119880C (zh) * 1999-09-16 2003-08-27 华为技术有限公司 移动通信系统中移动台和基站建立初始连接的方法
US6515980B1 (en) 1999-09-22 2003-02-04 Ericsson Inc. Methods and apparatus for interference cancellation using complex interference orthogonalization techniques
US6922434B2 (en) 1999-10-19 2005-07-26 Ericsson Inc. Apparatus and methods for finger delay selection in RAKE receivers
US6683924B1 (en) 1999-10-19 2004-01-27 Ericsson Inc. Apparatus and methods for selective correlation timing in rake receivers
CN1454411A (zh) * 2000-07-04 2003-11-05 连宇通信有限公司 码分多址系统中扩频多地址码的变换方法
KR100682118B1 (ko) * 2000-08-25 2007-02-12 에스케이 텔레콤주식회사 코드 분할 다원 접속 방식을 기반으로 하는 무선 지역루프 시스템에서의 다원 접속 간섭 제거 장치 및 방법
US6574269B1 (en) 2000-11-21 2003-06-03 Bbnt Solutions Llc Asymmetric orthogonal codes for wireless system receivers with multiplication-free correlators
US7769078B2 (en) * 2000-12-22 2010-08-03 Telefonaktiebolaget Lm Ericsson (Publ) Apparatus, methods and computer program products for delay selection in a spread-spectrum receiver
WO2005081438A1 (en) * 2001-11-19 2005-09-01 Tensorcomm, Incorporated Interference cancellation in a signal
US7099377B2 (en) * 2002-04-03 2006-08-29 Stmicroelectronics N.V. Method and device for interference cancellation in a CDMA wireless communication system
US6765952B2 (en) * 2002-05-06 2004-07-20 Qualcomm Incorporated Transmit diversity pilot processing
US6862440B2 (en) * 2002-05-29 2005-03-01 Intel Corporation Method and system for multiple channel wireless transmitter and receiver phase and amplitude calibration
US7079025B2 (en) * 2002-06-11 2006-07-18 Worcester Polytechnic Institute Reconfigurable geolocation system
WO2004102910A1 (en) * 2003-05-14 2004-11-25 Koninklijke Philips Electronics N.V. Iterative channel estimation using pilot signals
CN100345387C (zh) * 2004-02-09 2007-10-24 瑞昱半导体股份有限公司 校正同相信号与正交相信号的相位差的方法及装置
KR100594943B1 (ko) * 2004-11-30 2006-06-30 리전츠 오브 더 유니버스티 오브 미네소타 원칩시스템에서 데이터 변복조 방법
JP5497968B2 (ja) * 2010-11-03 2014-05-21 エンパイア テクノロジー ディベロップメント エルエルシー Ｃｄｍａ干渉サブトラクションのための共同データ共有
GB2503418A (en) * 2012-04-27 2014-01-01 Imp Innovations Ltd Spreading data symbols using a number of signature sequences selected in accordance with system values indicative of signal-to-noise ratios
CN108092692B (zh) * 2017-12-27 2020-02-07 西安科锐盛创新科技有限公司 一种cdma系统信道扩频装置及方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272721A (en) * 1990-02-14 1993-12-21 Nobuo Mikoshiba Spread spectrum receiving device
US5157686A (en) * 1990-05-24 1992-10-20 Cylink Corporation Method and apparatus for the modulation of spread spectrum radio signals
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5101417A (en) * 1990-06-29 1992-03-31 Xerox Corporation Phase controlled synchronization for direct sequence spread-spectrum communication systems
US5099493A (en) * 1990-08-27 1992-03-24 Zeger-Abrams Incorporated Multiple signal receiver for direct sequence, code division multiple access, spread spectrum signals
US5218619A (en) * 1990-12-17 1993-06-08 Ericsson Ge Mobile Communications Holding, Inc. CDMA subtractive demodulation
US5151919A (en) * 1990-12-17 1992-09-29 Ericsson-Ge Mobile Communications Holding Inc. Cdma subtractive demodulation
US5105435A (en) * 1990-12-21 1992-04-14 Motorola, Inc. Method and apparatus for cancelling spread-spectrum noise
US5204874A (en) * 1991-08-28 1993-04-20 Motorola, Inc. Method and apparatus for using orthogonal coding in a communication system
US5345468A (en) * 1992-12-16 1994-09-06 At&T Bell Laboratories Despreading technique for CDMA systems
US5345472A (en) * 1993-08-02 1994-09-06 Motorola, Inc. Method and apparatus for receiving and decoding communication signals in a CDMA receiver
US5414699A (en) * 1993-09-27 1995-05-09 Motorola, Inc. Method and apparatus for receiving and decoding communication signals in a CDMA receiver using partial de-correlation
US5471497A (en) * 1993-11-01 1995-11-28 Zehavi; Ephraim Method and apparatus for variable rate signal transmission in a spread spectrum communication system using coset coding

Also Published As

Publication number Publication date
CN1196842A (zh) 1998-10-21
CA2227880A1 (en) 1997-02-13
IL122989A0 (en) 1998-08-16
DE69625816T2 (de) 2003-08-28
IL122989A (en) 2000-11-21
CA2227880C (en) 2009-06-09
US5615209A (en) 1997-03-25
EP0840960B1 (en) 2003-01-15
AU6494896A (en) 1997-02-26
DE69625816D1 (de) 2003-02-20
EP0840960A1 (en) 1998-05-13
AU728040B2 (en) 2001-01-04
CN1098571C (zh) 2003-01-08
KR100410791B1 (ko) 2004-02-18
WO1997005708A1 (en) 1997-02-13
RU2200365C2 (ru) 2003-03-10
KR19990035981A (ko) 1999-05-25
JP2000503172A (ja) 2000-03-14

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Legal Events

Date Code Title Description
EG Technical examination (opinion): publication of technical examination (opinion)
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]